Simulation of nozzle position optimization based on single-phase flow

2018 6th International Conference on Mechanical Engineering, Materials Science and Civil Engineering

材料科学;机械制造;土木建筑工程

Chen, Guang^1 ; Zhou, Yuancong^1 ; Qian, Xuelin^1 ; Wu, Wenmin^2 ; Zhao, Yifan^2 ; Hu, Yumei^1

State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing

400044, China^1

Chinese Helicopter Desigh and Research Institude, 333001, China^2

关键词: Gear lubrication;    High Speed;    High-speed gears;    Lubrication system;    Meshing gears;    Simulation analysis;    Single-phase flow;    Test benches;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/542/1/012026/pdf
DOI  :  10.1088/1757-899X/542/1/012026

来源: IOP

【 摘 要 】

The numerical simulation on the lubrication of the complex gearbox was studied and an optimization for its injection lubrication system was carried out. Firstly, a pair of high speed gear test bench was built and related experiments were completed. The experimental results verified the correctness of the numerical simulation modeling method. Then the numerical model of the injection lubrication of the complex gear box was established, the simulation analysis was carried out. The results show that the overlong injection distance, the angle of the end face and the arrangement of the nozzle in the out of mesh side are not good for lubrication. And there is a trace in the center plane of the two meshing gear, along which the ejected oil will be under the least impact of the high speed airflow that driven by the rotating gears. When the nozzle axis is in the direction of the trace, the gear lubrication condition is the best.